On Thu, 11 Nov 2021 14:30:05 GMT, Martin Doerr <[email protected]> wrote:
>> src/hotspot/cpu/ppc/gc/shenandoah/c1/shenandoahBarrierSetC1_ppc.cpp line 83:
>>
>>> 81: LIRGenerator* gen = access.gen();
>>> 82:
>>> 83: if (ShenandoahCASBarrier) {
>>
>> I am not sure, but I almost think we should not even end up in the method
>> with -ShenandoahCASBarrier. If anything, -ShenandoahCASBarrier should result
>> in only calling super to emit regular CAS without any barriers.
>
> We hit this case when running `jdk/bin/java -XX:+UseShenandoahGC
> -XX:ShenandoahGCMode=passive -version`. x86 and aarch64 check for
> ShenandoahCASBarrier, too. So, looks like these checks are needed and correct.
Ok then.
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PR: https://git.openjdk.java.net/jdk/pull/6325
